Re: Laser printer: fish smell, then dead

From: JT (NgPoster_at_missing.org)
Date: 06/13/04 

Date: Sat, 12 Jun 2004 18:36:20 -0700

Thanks for the suggestions. Everyone agrees that bad electrolytics =
bad fish, so it must be so, tho I've never noticed any smell from a
bad cap. Maybe in other cases the resistor or other part that caused
the cap to go overpowered the fish.

Since the thing seems dead I expected the PS to have blown but as I
said it's putting out at least a couple of voltages - all but whatever
belongs on those two big black leads.

And everything on both sides of the PS pcb looks good as new. The data
processing pcb is on the right and readily accessible and at least the
top side looks great. Nothing oozing, nothing discolored, nothing
bulging. Nothing smelling like feesh. There's a small pcb under the
mechanism that I haven't figured out how to access. Jack hammer?
What's likely supposed to be on the two heavy black leads (heavy being
maybe 16 ga) that go into the area of the mechanism? Presumably laser
and heater power.

John

"James Sweet" <jamessweet@hotmail.com> wrote:

>
>"JT" <NgPoster@missing.org> wrote in message
>news:o83mc0hauu7m07vu3tn192rq756falbege@4ax.com...
>> My Lexmark/IBM laser printer exuded a sharp fishy smell for a couple
>> of weeks. I guessed it was something that had gotten into the paper
>> path and was more an annoyance than anything more serious, and once
>> took out the toner card and dusted the thing out and it seemed to
>> diminish. Then yesterday halfway through making a print it just turned
>> off and won't come back on.
>>
>> The PS seems to be working except that there's no voltage on the two
>> heavy black leads that disappear into the machine itself (as opposed
>> to the logic board on the side.)
>>
>>
>
>Does it have any surface mount electrolytic capacitors in it? If so they're
>probably all leaking. When failing, they smell strongly of rotting fish.
>

Relevant Pages

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